161 lines
4.1 KiB
C
161 lines
4.1 KiB
C
/**
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*
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* author: Daniel Otte
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* email: daniel.otte@rub.de
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* license: GPLv3
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*
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* common function for nessie-tests
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*
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* */
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#include <string.h>
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#include <stdint.h>
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#include <avr/pgmspace.h>
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#include <stdlib.h> /* utoa() */
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#include "uart.h"
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void nessie_print_block(uint8_t* block, uint16_t blocksize_bit){
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char tab [] = {'0', '1', '2', '3',
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'4', '5', '6', '7',
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'8', '9', 'A', 'B',
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'C', 'D', 'E', 'F'};
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uint16_t i;
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for(i=0; i<(blocksize_bit+7)/8; ++i){
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uart_putc(tab[(block[i])>>4]);
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uart_putc(tab[(block[i])&0xf]);
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}
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}
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#define SPACES 31
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#define BYTESPERLINE 16
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void nessie_print_item(char* name, uint8_t* buffer, uint16_t size_B){
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uint8_t name_len;
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uint8_t i;
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name_len=strlen(name);
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if(name_len>SPACES-1){
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uart_putstr_P(PSTR("\r\n!!! formatting error !!!\r\n"));
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return;
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}
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uart_putstr_P(PSTR("\r\n"));
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for(i=0; i<SPACES-name_len-1; ++i){
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uart_putc(' ');
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}
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uart_putstr(name);
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uart_putc('=');
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/* now the data printing begins */
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if(size_B<=BYTESPERLINE){
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/* one line seems sufficient */
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nessie_print_block(buffer, size_B*8);
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} else {
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/* we need more lines */
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nessie_print_block(buffer, BYTESPERLINE*8); /* first line */
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int16_t toprint = size_B - BYTESPERLINE;
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buffer += BYTESPERLINE;
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while(toprint > 0){
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uart_putstr_P(PSTR("\r\n"));
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for(i=0; i<SPACES; ++i){
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uart_putc(' ');
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}
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nessie_print_block(buffer, ((toprint>BYTESPERLINE)?BYTESPERLINE:toprint)*8);
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buffer += BYTESPERLINE;
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toprint -= BYTESPERLINE;
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}
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}
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}
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void nessie_print_set_vector(uint8_t set, uint16_t vector){
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uart_putstr_P(PSTR("\r\n\r\nSet "));
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uart_putc('0'+set%10);
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uart_putstr_P(PSTR(", vector#"));
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uart_putc((vector<100)?' ':'0'+vector/100);
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uart_putc((vector<10 )?' ':'0'+(vector/10)%10);
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uart_putc('0'+vector%10);
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uart_putc(':');
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}
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/* example:
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Test vectors -- set 3
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=====================
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*/
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void nessie_print_setheader(uint8_t set){
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uart_putstr_P(PSTR("\r\n\r\nTest vectors -- set "));
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uart_putc('0'+set%10);
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uart_putstr_P(PSTR("\r\n====================="));
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}
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/* example:
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********************************************************************************
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*Project NESSIE - New European Schemes for Signature, Integrity, and Encryption*
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********************************************************************************
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Primitive Name: Serpent
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=======================
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Key size: 256 bits
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Block size: 128 bits
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*/
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void nessie_print_header(char* name,
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uint16_t keysize_b,
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uint16_t blocksize_b,
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uint16_t hashsize_b,
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uint16_t macsize_b,
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uint16_t ivsize_b ){
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uint16_t i;
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uart_putstr_P(PSTR("\r\n\r\n"
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"********************************************************************************\r\n"
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"* micro-cryt - crypto primitives for microcontrolles by Daniel Otte *\r\n"
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"********************************************************************************\r\n"
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"\r\n"));
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uart_putstr_P(PSTR("Primitive Name: "));
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uart_putstr(name);
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uart_putstr_P(PSTR("\r\n"));
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/* underline */
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for(i=0; i<16+strlen(name); ++i){
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uart_putc('=');
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}
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char str[6]; /* must catch numbers up to 65535 + terminatin \0 */
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if(keysize_b){
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uart_putstr_P(PSTR("\r\nKey size: "));
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utoa(keysize_b, str, 10);
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uart_putstr(str);
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uart_putstr_P(PSTR(" bits"));
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}
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if(blocksize_b){
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uart_putstr_P(PSTR("\r\nBlock size: "));
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utoa(blocksize_b, str, 10);
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uart_putstr(str);
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uart_putstr_P(PSTR(" bits"));
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}
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if(hashsize_b){
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uart_putstr_P(PSTR("\r\nHash size: "));
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utoa(hashsize_b, str, 10);
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uart_putstr(str);
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uart_putstr_P(PSTR(" bits"));
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}
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if(macsize_b){
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uart_putstr_P(PSTR("\r\nMac size: "));
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utoa(macsize_b, str, 10);
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uart_putstr(str);
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uart_putstr_P(PSTR(" bits"));
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}
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if(ivsize_b){
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if(ivsize_b==(uint16_t)-1){
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uart_putstr_P(PSTR("\r\nNo initial value (IV) mode"));
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}
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{
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uart_putstr_P(PSTR("\r\nIV size: "));
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utoa(ivsize_b, str, 10);
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uart_putstr(str);
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uart_putstr_P(PSTR(" bits"));
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}
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}
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uart_putstr_P(PSTR("\r\n"));
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}
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void nessie_print_footer(void){
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uart_putstr_P(PSTR("\r\n\r\n\r\n\r\nEnd of test vectors\r\n\r\n"));
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}
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